Can anyone explain how/when the Auxiliary Cabin should work. My understanding is it is designed to operate until the engine reaches a temperature that allows the heat to be drawn from the engine instead. On mine it doesn't seem to go off unless it's naturally hot in the cabin ( e.g. Sunlight) or if I turn the settings down below say 20. My engine gauge reads anywhere between 1/4 and 1/3, sometimes just below 1/2 but that squigely or orange light doesn't go out? My car is under warranty and taken it in twice now with no joy.